Hex #88b899 or rgb(136,184,153) in RGB space is the tint of bluish green. It has hue angle of 141.25 degrees, value = 72 and saturation = 26. #88b899 can be obtained by mixing 4 colors: 3 drops of red, 4 drops of cyan, 3 drops of green, 5 drops of white.
Nearest safe hex - #99cc99. Below you can see the block with #88b899 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #88b899 to the mixer and play with it.